Valve



Nov. 3, 1931. P. NACHTSHEIM VALVE Filed Sept. 23 1929 Patented Nov. 3, 1931 PETER NACBTSHEIM, 01 SEIQIJERS, LOUISIANA 'VAIiVE Applicationfiled September 23, 1929. Serial N; 394,710.

This invention relates to improvements in valve constructions, having for an object 130 provide a novel form 0f rotatable valve, especially advantageous for use in controlling the 5 passag e of fiuicls through high pressure conduits, such for exa1nple, as those pipe lines employed in petroleum refining apparatus, the valve being so constructecl that it may be quickly ancl effectually adjustedto be ren- 1o dered absolutely and controllably fluicl tight und hence, the seepage OI' leakage of inflammahle gases or liquicls therefrom detected, controlled und prevented.

It is also among the principal desiderata of the invention to provicle a valve'of oho character mentioneol, the componer'1t parts 013 which a1e feW ancl of such construction and arrangement as will permit the same to be ofiectually assembled und disass embled in a minimum of time; furthermore, a1e of rugged and durable construction, thereby' causing economy in manufacturing and prolonging the period of efiioient usage 0f the same. i

Yet another and equally important object 0f the invention is to provide a valve with telltalg, means adapted t0 function, with the closing of the valve, to give positive indicav .tion of any leakage of gas or liquid thereby, in order that adjustment may be nmde of certain native parts to rencler the conStruction controllably anc1 visibly tight.

A furtherobject of the invention resides in the provision 0'E avalve Wlll(ll,' in event of sticking of t he plug o1 'valve proper, as from a long period of disuse, 1nay be-with but slight adjustment, releaSed to allow o f its free operation ancl then, as quickly, tightenecl to ensure fluicl tightness of the same.

Other objects of the invention Will be in part obvious ancl in part pointed out hereinafter.

In oraler that the invention and its n1ode operation may be readily understood by persons skilled in the mt to Whi0h this invention pertains, I have in the acoompanying illustrative drawings and in the detailed folloW- ing descriptionbasecl thereon, sei: ouii soveral embodiments o:f the same, with the claims.

under standing tliat such changes may be made as are within the scope ofmy appended In these lrawings: 1 Figre 1 is a top plan view of the improvecl valve construction,

Figure 2 iS a verticl longitudinal section'.

through the Same taken 011 the lino 2-2 of the Figure l,

Figure 3 is a horizontal section taken on the line 33 ofFigure 2, am]. having a portion thereof broken away to illustrate the leakage telltale arrangement -Figure 4 is a similar section taken 0n the line 4-4 of Figure 2.

Having more partiular reference to, the

drawings, in connection with which like characters of reference Will designate eorresponding parts throughout, the improved oonstructioncomprises a casing indicated in its ei1tirety by -the numeral l, said casing being formed with flanged inlet und. outlet extremities 2 and 3 having ports 01' ways therein, as is we11 shown in the Figures 2 and 4; the inlet andoutltatextremities may bescrewed as well 'as flanged,the intermediate 'portion of theoasing being formedwith a diamet1ically disposed taperedand cross sectionally circular valve seat and the reduced extremity of said tapered valve seat being providecl with an outwardly tapered partially externally screw threaded tapered collar 4, the inner Walls orsurface ofthis tapered.collar 4 being *cntiguous wi th thetaperecl inner surfaces or Walls of the valvo seat. A, cross sectionallycircular and tapored V plug valve deSignated by the numeral 5, is

adapted to be" snugly and rotatablyreceivecl in the valve casingseat, aforesaid, said va'1ve being proVided with a way 01 port 6 for an obvious purpose. The plug valve 5 is of a length slightly greater than th e oombined diame ter 0f the*casing 1 and the length of the tapererl collar 4, hence, with seating ofthe 9 same in the valve casing seat; allowing one extremity of. said plug to loe arranged in 7 proximity to the outeroxtrem1ty of the collar 4,as is shown in the Figure 2. This particu- 1ar orreduced end of the cross sectionally und thus, causing the tapered p1ug valve 5 to be positively moved into fluid 01 gas tight engagernent with the correspondingly formed sich Walls of its receiving seat in the casing 1.

From the above, it Will be readily umlerstood by Workers skilled in this particulzuart, that even though the number of working parts of my improved valve construction are few, they a1e excee'dingly durableand simple, therefore, the invention will effectually withstand that rugged use to which the same may be pu t for a prolonged period of time, automatically und visibly indicating any disturbance of proper functioning of same at all times.

Should the original engagement of the p1g valve 5 in the va1ve seat become non-fluid tight, as through wearing of the contacting arts, fit is to be understood that this may be readily compensated for by further adjustment of the adjusting nut 12, that is, turning said adj ustinq nut in'a direction 130 impart a further outward thrust 130 the spindle shank 9 through the bearing washer 14 und the flanged portion 10, hence, tightly engaging the tapered peripheral surface of the p1ug valve with the correspondingly f0rrned surface 01 walls of the valve casin seat and again rendering the construction fIuid 01 gas 1:1ght.

Furthermore, because of the formation of the plug valve 5 and its moc1e 0f engagement in the tapered seatprovided therefor in the casing 1, it Will be seen that said plug valve 2 may be materially adjusted or re-tightened in its receiving seat in the casing 1 and (3011- sequently upon this, the period of time for Which ehe device may be efiectually and economically used, is materially lengthened. Also, by elongating the port or way 15 formed in the casing 1, it will be understood that the longitudinal adjustment 0f the plug valve 5 in the casing seat, as conditions Warrant,

Will not affect the establishing of communi cation between the peripherally opening por tion of the duct 16 and the valve port 01 way 6. That is to say, by reason of the elongated shape of said port 15, allowance is made for variation in the positioning of the outer extremity 0f the duct, due to various taking-up operation of the plug valve 5 through the adjusting nut 12.

VVhile I have hereinbefore referred to my improved valve construction as being especially advantageous for use in connection with high pressure conduits, such as the pipe lines 0f apparatus for refining petroleum, itwi11 be understood that the invention is'not 1ixnited in its range of adaptation, but to the contrary, that the same may be used in connection with practically any form of conduit 01 pipe used for conducting fluids, vapors 01 gases, controllable as t0 losses regarding valve leakagesand otherwise.

Manifestly, the construction shown is capable of considerable modification, and such modification as is within the spirit of my claims I consider within the spirit of my invention, one such being that fiange 18 of nut 12 may beshaped 130 r6ceive a handle, operatin wheel, 0r other means of operation.

I'claim l. In a valve, a casing having inlet and outlet ways and a valve seat therein, a plug va1ve rotatably engaged in said seat, a portion of' said casing having an elongated way formed therein and communicating with the seat, said plug valve having a by-pass formed in the same, one end of the by-pass communicating with the valve port and the other end opening onto the peripheral surface of the p1ug valve and adapted, at times, 150 register with said elongated way in the casing, and means a-djustably engage'd with said casing for imparting movement 130 the plug valve whereby to closely engage it in said sea't.

2. In a valve, a casinq having inlet and outlet ways anc1 a cross sectionally circular tapered valve s6at therein, a tapered plug valve rotatablyengaged in said seat, the reduced end of said p1ug valve having a coaxially disposed screw threaded opening formed therein, a spindle shank formed with an intermediate flanged portion and with the reduced screw threaded' extension, said screw threaded extension being adapted t0 be engaged in the coaxial screw threaded opening in said p1ug valve, an adjusting nut having screw threaded engagement with a portion oi said casing in proximity t0 the rduced end of said tapered plug va1ve, sai-d adjusting nut being adapted to impart a thrust t0 the flanged portion 0f said spindle shank, a bear hahd.

PETER NACHTSI-IEIM. 

